a locking device

Abstract

The invention discloses a locking device. The locking device includes: a drive assembly, a screw, a screw sleeve, a locking block, a sliding sleeve and a lock shaft, the drive shaft of the drive assembly is connected to the first end of the screw, and the screw sleeve is threadedly mounted on the second end of the screw, and the screw sleeve One end of the sleeve is inserted into the sliding sleeve, the locking block is arranged at the second end of the screw, the other end of the screw sleeve protrudes from the sliding sleeve and is fixedly connected with the locking block, the sliding sleeve is provided with a first sliding hole and a second sliding hole, the second One sliding hole is arranged along the axial direction of the sliding sleeve, the second sliding hole is arranged along the radial direction of the sliding sleeve, the first end of the first sliding hole communicates with the first end of the second sliding hole, and the first end of the first sliding hole communicates with the first end of the second sliding hole. One end is the end close to the locking block, and the locking shaft is fixed on the outer wall of the screw sleeve, and is slidably arranged in the first sliding hole and the second sliding hole. The locking device realizes locking through the expansion and contraction of the screw rod. During the locking process of the screw rod, the force generated by it is consistent with the locking direction, and no force in other directions will be generated.

Description

technical field [0001] The invention relates to the field of mechanical locking devices, in particular to a locking device. Background technique [0002] Locking devices are fitted in many mechanical devices that fit on tracks, such as ships, cranes or rail vehicles. When the mechanical device loads and unloads heavy goods, an impact force will be generated in the direction perpendicular to the track of the mechanical device. The impact force will cause the mechanical device to move. The locking device can prevent the mechanical device from moving in the direction perpendicular to the track. [0003] An existing locking device includes a hydraulic cylinder, a locking hook and a locking groove arranged on one side of the track, the cylinder body of the hydraulic cylinder and the hinged end of the locking hook are respectively hinged to the mechanical device, the piston rod of the hydraulic cylinder is hinged to the locking hook, and The hydraulic cylinder is configured to dr...

AI Technical Summary

Problems solved by technology

[0005] When the mechanical device is loading and unloading goods, there are certain positioning requirements along the direction of the track. When the mechanical device reaches the loading and unloading position, the traveling mechanism brakes. Usually the opening of the locking hook is arranged vertically downward. At this time, the locking hook will be locked when locked. A large force perpendicular to the track plane is generated on the locking groove, which will change the position of the mechanical device perpendicular to the track plane, causing inconvenience to cargo loading and unloading

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